HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2425479Generated: October 28, 2026
Ethyl Acetate → 5-[3-[(1S)-2-(Difluoromethoxy)-1-methylethoxy]-5-[[(5-methyl-2-pyrazinyl)amino]carbonyl]phenoxy]-N,N-dimethyl-2-pyrazinecarboxamide
https://huagongshe.com/reaction/2425479
Participants
| Role | Name | HCID | Charge |
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| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 5-chloro-N,N-dimethylpyrazine-2-carboxamide | HCID 59000470 | — |
| Reactant | HCID 59205104 | HCID 59205104 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | 5-[3-[(1S)-2-(Difluoromethoxy)-1-methylethoxy]-5-[[(5-methyl-2-pyrazinyl)amino]carbonyl]phenoxy]-N,N-dimethyl-2-pyrazinecarboxamide | HCID 25096253 | 55.3% |
Reaction Steps
A mixture of 3-[(2S)-1-(difluoromethoxy)propan-2-yl]oxy-5-hydroxy-N-(5-methylpyrazin-2-yl)benzamide (0.19 g, 0.54 mmol), 5-chloro-N,N-dimethyl-pyrazine-2-carboxamide (100 mg, 0.54 mmol) and potassium carbonate (149 mg, 1.08 mmol) in acetonitrile (5 mL) was stirred in a microwave reactor at 140° C. for 5 hours and the mixture reduced in vacuo. Ethyl acetate (50 mL) was added and the mixture washed with water (50 mL), brine (50 mL), dried (MgSO4), and reduced in vacuo. The crude residue was chromatographed on silica, eluting with 0-5% methanol in DCM, to give the desired compound (150 mg).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07964725B2 |
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| Source dataset | uspto-grants-2011_06 |
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| ORD ID | ord-9fc922de47f345a5848291c037868938 |
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| Source note | uspto-grants-2011_06 |
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